package com.caul.demo.hadoop.mapreduce.idx;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;

/**
 * Created by sdliang on 2018/3/31.
 */
public class WordIndexReducer extends Reducer<Text, IntWritable, Text, IntWritable> {

  @Override
  protected void reduce(Text key, Iterable<IntWritable> values, Context context)
      throws IOException, InterruptedException {
    int cont = 0;
    for (IntWritable value : values) {
      cont += value.get();
    }
    context.write(key, new IntWritable(cont));
  }
}
